EP 3468667 B1 20210224 - TRAJECTORY OPTIMIZATION IN RADIOTHERAPY USING SECTIONING
Title (en)
TRAJECTORY OPTIMIZATION IN RADIOTHERAPY USING SECTIONING
Title (de)
TRAJEKTORIEOPTIMIERUNG IN DER STRAHLENTHERAPIE MITHILFE VON SEKTIONIERUNG
Title (fr)
OPTIMISATION DE TRAJECTOIRES EN RADIOTHÉRAPIE PAR SECTIONNEMENT
Publication
Application
Priority
- US 201662349420 P 20160613
- US 201662422731 P 20161116
- US 2017037340 W 20170613
Abstract (en)
[origin: US2017354832A1] A radiation therapy treatment method includes providing a patient model, dosimetric constraints, delivery motion constraints, and delivery coordinate space of a radiation delivery device, where the delivery coordinate space is represented as a mesh with vertices connected by edges, where the vertices correspond to directions of a beam eye view (BEV) of the radiation delivery device, where each BEV has corresponding area elements resulting from beam collimation. BEV region connectivity manifolds are constructed from the patient model, the dosimetric constraints, the delivery coordinate space, and existing beam trajectories, wherein each of the BEV region connectivity manifolds represents connections between contiguous 2D target regions, where each of the 2D target regions is defined at each of the vertices of the delivery coordinate space. Beam trajectories are selected based on region connectedness information in the BEV region connectivity manifolds, the dosimetric constraints, the delivery motion constraints, and the existing beam trajectories. Radiation is delivered using the radiation delivery device in accordance with the beam trajectories.
IPC 8 full level
CPC (source: EP US)
A61N 5/103 (2013.01 - EP US); A61N 5/1047 (2013.01 - EP US); A61N 5/1081 (2013.01 - US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
US 10213621 B2 20190226; US 2017354832 A1 20171214; CN 109310880 A 20190205; CN 109310880 B 20210910; EP 3468667 A1 20190417; EP 3468667 A4 20200429; EP 3468667 B1 20210224; US 10576300 B2 20200303; US 10792513 B2 20201006; US 2019091485 A1 20190328; US 2020197724 A1 20200625; WO 2017218597 A1 20171221
DOCDB simple family (application)
US 201715621962 A 20170613; CN 201780036636 A 20170613; EP 17813975 A 20170613; US 2017037340 W 20170613; US 201816203427 A 20181128; US 202016806321 A 20200302